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Finding the Fourth Proportional to 12,185.21, 18,281.90 and 5,606.44

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Solution

The fourth proportional to 12,185.21, 18,281.90 and 5,606.44 is: 8,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.21 : 18,281.90 = 5,606.44 : x
  2. Step 2: Convert to fraction form
    12,185.21/18,281.90 = 5,606.44/x
  3. Step 3: Cross multiply
    12,185.21x = 18,281.90 × 5,606.44
  4. Step 4: Simplify right side
    12,185.21x = 102,496,343.75
  5. Step 5: Solve for x
    x = 102,496,343.75/12,185.21
  6. Step 6: Final answer
    x = 8,411.54

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